<template>
  <div class="Th-aside">
    
  <el-menu
    default-active="2"
    class="el-menu-vertical-demo"
    @open="handleOpen"
    @close="handleClose"
  >
    <el-sub-menu index="1">
      <template #title>
        <span>Navigator One</span>
      </template>
      <el-menu-item-group title="Group One">
        <el-menu-item index="1-1">item one</el-menu-item>
        <el-menu-item index="1-2">item one</el-menu-item>
      </el-menu-item-group>
      <el-menu-item-group title="Group Two">
        <el-menu-item index="1-3">item three</el-menu-item>
      </el-menu-item-group>
      <el-sub-menu index="1-4">
        <template #title>item four</template>
        <el-menu-item index="1-4-1">item one</el-menu-item>
      </el-sub-menu>
    </el-sub-menu>
    <el-menu-item index="2">
      <span>Navigator Two</span>
    </el-menu-item>
    <el-menu-item index="3" disabled>
      <span>Navigator Three</span>
    </el-menu-item>
    <el-menu-item index="4">
      <span>Navigator Four</span>
    </el-menu-item>
  </el-menu>
  </div>
</template>

<script>

</script>